The Top DSM Community on the Web

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. Log in to remove most ads.

Please Support ExtremePSI
Please Support STM Tuned

ECUflash Car won't run, P0105 but it's a Speed Density setup

This site may earn a commission from merchant
affiliate links, including eBay, Amazon, and others.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

jinscho

Proven Member
636
321
Jun 16, 2017
Bangor, Pennsylvania
So, a few days ago I had the car running great. It was VERY rich at idle, but I wasn't concerned with it as I have a remote tune scheduled for tomorrow with Ricky from Rix Racing. In preparation for the remote tune, Ricky gave me a small checklist of stuff to do before Monday, none of which should have caused my current issue.

BLT passed at 30 psi, I wired in my wideband to pin 75 on the ECU so it can be logged, verified mechanical timing, pulled the plugs and verified gap. I also wired in a new head unit.. irrelevant, but just covering all of the bases.

After completing all of the above, I went to start the car and it wouldnt start. Almost sounds like it's down a cylinder, but I already verified fuel and spark across all 4 cylinders. ECU was throwing codes for P0100 and P0105, both related to the MAF (which was never installed as I am running speed density, with a GM IAT wired in, and a Mitsu Style Omni 4 bar where the stock MDP was). I grabbed a known good MAF and installed it. P0105 remains and the car still won't run properly.

I'm at a loss currently and NEED to have this fixed by tomorrow at 10am. Any guidance would be appreciated.
 
Log attached, it runs (horribly, at around 400 rpm) for about 5 seconds before stalling. If I give it some gas, I can keep it running a little bit longer...
 

Attachments

  • EvoScanDataLog_2020.05.31_13.40.01.csv
    22.4 KB · Views: 35
Support Vendors who Support the DSM Community
Boosted Fabrication ECM Tuning ExtremePSI Fuel Injector Clinic Innovation Products Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications MyMitsubishiStore.com RixRacing RockAuto RTM Racing STM Tuned

Latest posts

Build Thread Updates

Vendor Updates

Latest Classifieds

Back
Top